Refrigerator appliance



FIG. 1 is a first upper perspective view of a refrigerator appliance design;

FIG. 2 is a second upper perspective view of the refrigerator appliance design of FIG. 1 ;

FIG. 3 a front view of the refrigerator appliance design of FIG. 1 ;

FIG. 4 is a first side view of the refrigerator appliance design of FIG. 1 ;

FIG. 5 is a second side view of the refrigerator appliance design of FIG. 1 ; and,

FIG. 6 is a top view of the refrigerator appliance design of FIG. 1 .

The broken line disclosure represents unclaimed portions of the refrigerator appliance in which the design is embodied. 

CLAIM The ornamental design for a refrigerator appliance, as shown and described. 